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Re: Connector, cables, attenuation (mic line attenuator for MD)

Subject: Re: Connector, cables, attenuation (mic line attenuator for MD)
From: "Steve Pelikan" pelikan45224
Date: Fri Mar 9, 2007 8:54 am ((PST))
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THANK YOU!

And thanks to Rich too. The links you two supplied will be of interest
to others, so I combine them here:

http://www.uneeda-audio.com/pads/  (includes a plan and enough theory to
make one think one understands what's happening)

http://www.megalithia.com/elect/mdmicatten.pdf (includes specific plan
w/ specific components).

I also really appreciate the advice about not using a jack socket as
output --- that is what I was about to do.

I've just order some parts and will post again when I manage to build
and try it.
That'll be soon I hope as I expect some migrants (Eastern Phoebes and
Pine Warblers) tomorrow morning

Steve P

stoatwizard wrote:
> --- In  Steve Pelikan <>
> wrote:
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>> Thanks! and profuse apologies --- when it comes to wires and electrons
>> I'm MUCH less sophisticated than people give me credit for.
>>
>
> Steve,
>
> try http://www.megalithia.com/elect/mdmicatten.pdf
>
> Use the lower version if you're not passing plug-in-power
>
> The capacitors help in the field where you can't usually avoid slight
> movement of the connectors - if you just use a low-value resistive
> attenuator with a MD deck you get a needlessly scratchy connection
> because of the DC plug-in-power passing through the connectors. I made
> a bad call using a jack socket and jack-to-jack lead for the output -
> wire the output directly to a right-angled 3.5mm jack to go into the MD.
>
> I did drop the capacitor values to 0.1uF towards the end, which helped
> cut back wind blast, traffic and handling noise a bit (I was recording
> birds, so I didn't need the bottom end).
>
>
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